401553716 has 6 divisors (see below), whose sum is σ = 702719010. Its totient is φ = 200776856.

The previous prime is 401553709. The next prime is 401553793. The reversal of 401553716 is 617355104.

It can be written as a sum of positive squares in only one way, i.e., 391881616 + 9672100 = 19796^2 + 3110^2 .

It is a super-2 number, since 2×401553716² = 322490773666817312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50194211 + ... + 50194218.

It is an arithmetic number, because the mean of its divisors is an integer number (117119835).

Almost surely, 2^401553716 is an apocalyptic number.

It is an amenable number.

401553716 is a deficient number, since it is larger than the sum of its proper divisors (301165294).

401553716 is a wasteful number, since it uses less digits than its factorization.

401553716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100388433 (or 100388431 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 401553716 is about 20038.8052538069. The cubic root of 401553716 is about 737.7590569763.

The spelling of 401553716 in words is "four hundred one million, five hundred fifty-three thousand, seven hundred sixteen".